Users seem to be able to eventually get the board recognized by a combination of giving the computer time to finish the install ( close to 20 min), plugging the board back in multiple times, reinstalling the drivers, and/or resetting the computer multiple times ( repeat both steps). Others have had issues where the installation process hangs.īased on the customer experiences, this might be specific to the manufacturer and are usually isolated cases. However, the board cannot be accessed on the Arduino IDE. We have had a few reports on Windows 10 where the driver will automatically install and the board will show up under a new COM port as USB-Serial CH340, but with a different device name. #define CONTROL_INVERT_MASK CONTROL_MASK // May be re-defined to only invert certain control pins.Troubleshooting COM Port is Not Showing Up as CH340 Windows #define CONTROL_PCMSK PCMSK2 // Pin change interrupt register #define CONTROL_INT PCIE2 // Pin change interrupt enable pin #define SAFETY_DOOR_BIT 3 // MEGA2560 Analog Pin 11 #define CYCLE_START_BIT 2 // MEGA2560 Analog Pin 10 #define FEED_HOLD_BIT 1 // MEGA2560 Analog Pin 9 #define RESET_BIT 0 // MEGA2560 Analog Pin 8 NOTE: All CONTROLs pins must be on the same port and not on a port with other input pins (limits). Define user-control CONTROLs (cycle start, reset, feed hold) input pins. #define COOLANT_MIST_BIT 6 // MEGA2560 Digital Pin 9 #ifdef ENABLE_M7 // Mist coolant disabled by default. #define COOLANT_FLOOD_BIT 5 // MEGA2560 Digital Pin 8 a later date if flash and memory space allows. NOTE: Uno analog pins 4 and 5 are reserved for an i2c interface, and may be installed at Define flood and mist coolant enable output pins. #define SPINDLE_DIRECTION_BIT 3 // MEGA2560 Digital Pin 5 #define SPINDLE_ENABLE_BIT 3 // MEGA2560 Digital Pin 6 ![]() Define spindle enable and spindle direction output pins. #define LIMIT_PCMSK PCMSK0 // Pin change interrupt register #define LIMIT_INT PCIE0 // Pin change interrupt enable pin #define Z_LIMIT_BIT 6 // MEGA2560 Digital Pin 12 #define Y_LIMIT_BIT 5 // MEGA2560 Digital Pin 11 #define X_LIMIT_BIT 4 // MEGA2560 Digital Pin 10 NOTE: All limit bit pins must be on the same port Define homing/hard limit switch input pins and limit interrupt vectors. #define STEPPERS_DISABLE_MASK (1<<STEPPERS_DISABLE_BIT) #define STEPPERS_DISABLE_BIT 7 // MEGA2560 Digital Pin 13 Define stepper driver enable/disable output pin. #define DIRECTION_MASK ((1<<X_DIRECTION_BIT)|(1<<Y_DIRECTION_BIT)|(1<<Z_DIRECTION_BIT)) // All direction bits #define y_DIRECTION_BIT 3 // MEGA2560 Digital Pin 32 #define Z_DIRECTION_BIT 5 // MEGA2560 Digital Pin 32 #define Y_DIRECTION_BIT 6 // MEGA2560 Digital Pin 31 #define X_DIRECTION_BIT 7 // MEGA2560 Digital Pin 30 NOTE: All direction pins must be on the same port. #define Y_STEP_BIT 5 // MEGA2560 Digital pin 27 #define Z_STEP_BIT 4 // MEGA2560 Digital Pin 26 ![]() #define Y_STEP_BIT 3 // MEGA2560 Digital Pin 25 ![]() #define X_STEP_BIT 2 // MEGA2560 Digital Pin 24 NOTE: All step bit pins must be on the same port. Increase Buffers to make use of extra SRAM #error "cpu_map already defined: GRBL_PLATFORM=" GRBL_PLATFORM I tried editing the cpu_map fill for MEGA can some one tell me if this alterations will work or destroy my steppers n other circuitry? thanks /* The second problem is if i edit the cpu _map file i cant use the arduino UNO since all ports have been declared, the next option would be arduino mega 2560 Or do i have to edit the cpu_map file to appoint new pins ? but the problem im facing is i dont have the same output pin to control two stepper with same movementĬan i use the same step and direction pin from arduino to split in two and get same movement of stepper? Im working on my diy cnc and im using arduino uno and GRBL running on it with easydriver 4.4 i prefer to use dual steppers on y axis drive.
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